I set one of flight mode as PosHold+AltHold, its not arming in this mode,and when i armed in Angle and after takeoff chanded mode to PosHold,then my 7"quad coming down sharply. What is reason?
Make the hover throttle of INAV Advanced Tuning the same as the hover throttle position of Angle. You will probably reduce the hover throttle on the INAV Advanced Tuning.
Did you cover your barometer with breathable foam? Mine was launching to the sky because altitude reading was undervalue. It's was solved by covering the barometer.